JPH0235091B2 - - Google Patents
Info
- Publication number
- JPH0235091B2 JPH0235091B2 JP56080478A JP8047881A JPH0235091B2 JP H0235091 B2 JPH0235091 B2 JP H0235091B2 JP 56080478 A JP56080478 A JP 56080478A JP 8047881 A JP8047881 A JP 8047881A JP H0235091 B2 JPH0235091 B2 JP H0235091B2
- Authority
- JP
- Japan
- Prior art keywords
- soil
- fibers
- stabilizing
- strength
- toughness
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000002689 soil Substances 0.000 claims description 32
- 230000000087 stabilizing effect Effects 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 10
- 229920002994 synthetic fiber Polymers 0.000 claims description 8
- 239000012209 synthetic fiber Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- 239000004568 cement Substances 0.000 claims description 6
- 239000004744 fabric Substances 0.000 claims description 6
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 5
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 5
- 239000004571 lime Substances 0.000 claims description 5
- 230000006641 stabilisation Effects 0.000 claims description 5
- 238000011105 stabilization Methods 0.000 claims description 5
- 239000004115 Sodium Silicate Substances 0.000 claims description 4
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 4
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 4
- 239000004480 active ingredient Substances 0.000 claims description 3
- 239000000835 fiber Substances 0.000 description 8
- 229920000728 polyester Polymers 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 239000002759 woven fabric Substances 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 1
- 229920000180 alkyd Polymers 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
Description
本発明は、土質安定処理を行なうに際し、土に
安定処理材とともに繊維類を混合する安定処理工
法に関するものである。
従来、土を安定化する場合には、各種セメン
ト、石灰、ケイ酸ソーダ等の単体または複数の組
合せを土と混合し、土の強度を高めている。しか
し上記の土質安定処理工法は、土を硬化させるこ
とのみに主眼点を置いているため土質の靭性が欠
如し、局部的な破壊を起すとこれを持ちこたえる
力を有しないため破壊が進行し、これをくい止め
ることが出来ない欠点があつた。
本発明は、上記の事情に鑑み、土に靭性を持た
せ破壊強度を高める安定処理工法を提供すること
を目的とする。
上記目的は、土にセメント、石灰またはケイ酸
ソーダを有効成分とする土質安定処理材を混合す
るに際し、長さ10〜300mm、幅0.2〜50mmの合成繊
維布帛を土１m3当たり0.2〜50Kg添加することを
特徴とする土質安定処理工法によつて達成され
る。
本発明の工法に用いられる繊維は合成繊維であ
り、天然繊維は腐食変質しやすく用い得ない。合
成繊維としては、ポリオレフイン、ポリ塩化ビニ
ル、ポリアミド、ポリエステル、ポリアクリロニ
トリル等が特に好ましい。合成繊維は不織布、織
物等の布帛の形で用いられる。布帛の大きさは長
さが10〜300mm、幅0.2〜50mmの範囲に入るものが
選ばれる。この合成繊維布帛は変形容易にして十
分な強度を持つており且つ取り扱い容易である等
の特徴を有している。上記範囲をはずれると土に
十分な靭性を付与できない。これら合成繊維布帛
の添加量は土１m3当たり0.2〜50Kgであり、これ
より少ないと土に十分な靭性を付与できずまたこ
れより多いと土質安定処理材の効果を十分に発揮
できなくなる。また各種セメント、石灰等の添加
量は、土の状態によつて使用する安定処理材の種
類および量が異なるが、通常土１m3当りの添加量
は50〜250Kgである。
上記繊維類および土質安定処理材を同時に又
は、相前後して土と均一に混合して固化せしめ一
体の混合物とすることにより、土質安定処理材の
硬度と繊維類の靭性により、破壊強度の優れた土
質とすることが出来る。
以下に実施例を示し本発明を具体的に説明す
る。
実施例１、比較例１
繊維類としてＡ：ポリエステル不織布（幅５×
長さ50×厚さ１mm）、Ｂ：ポリエステル織布（５
×50×１mm）、を用い、また安定処理材としてセ
メントを用いた。これ等を土１m3当りに所定量均
一に混合して土を安定化せしめた。次にそれぞれ
の条件によつて安定処理した土の一軸強度および
圧縮歪を測定した。また比較のため安定処理材の
みを添加した土質の一軸強度、圧縮歪を測定し
た。これを第１表に示す。
The present invention relates to a stabilizing method in which fibers are mixed with soil along with a stabilizing material when performing soil stabilizing treatment. Conventionally, when stabilizing soil, various types of cement, lime, sodium silicate, etc., singly or in combination, are mixed with the soil to increase the strength of the soil. However, the above-mentioned soil stabilization method focuses only on hardening the soil, so the soil lacks toughness, and if localized destruction occurs, it does not have the strength to withstand it, so the destruction progresses. , there was a drawback that this could not be stopped. In view of the above circumstances, the present invention aims to provide a stable treatment method that imparts toughness to soil and increases fracture strength. The above purpose is to add 0.2 to 50 kg of synthetic fiber fabric with a length of 10 to 300 mm and a width of 0.2 to 50 mm per 1 m 3 of soil when mixing soil stabilizing materials containing cement, lime, or sodium silicate as active ingredients. This is achieved through a soil stabilization method that is characterized by: The fibers used in the method of the present invention are synthetic fibers, and natural fibers cannot be used because they are susceptible to corrosion and deterioration. As the synthetic fiber, polyolefin, polyvinyl chloride, polyamide, polyester, polyacrylonitrile, etc. are particularly preferred. Synthetic fibers are used in the form of fabrics such as non-woven fabrics and woven fabrics. The size of the fabric chosen is within the range of 10 to 300 mm in length and 0.2 to 50 mm in width. This synthetic fiber fabric has characteristics such as being easily deformable, having sufficient strength, and being easy to handle. If it is outside the above range, sufficient toughness cannot be imparted to the soil. The amount of these synthetic fibers added is 0.2 to 50 kg per 1 m 3 of soil; if it is less than this, sufficient toughness cannot be imparted to the soil, and if it is more than this, the effect of the soil stabilizing material cannot be fully exhibited. Further, the amount of various cements, lime, etc. added varies depending on the condition of the soil, depending on the type and amount of stabilizing agent used, but the amount added per 1 m 3 of soil is usually 50 to 250 kg. By uniformly mixing the above-mentioned fibers and soil stabilizing material with soil at the same time or one after another and solidifying them to form an integrated mixture, excellent fracture strength can be achieved due to the hardness of the soil stabilizing material and the toughness of the fibers. It is possible to make the soil type. EXAMPLES The present invention will be specifically explained below with reference to Examples. Example 1, Comparative Example 1 Fibers A: Polyester nonwoven fabric (width 5 x
(Length 50 x Thickness 1mm), B: Polyester woven fabric (5
x 50 x 1 mm), and cement was used as a stabilizing material. These were uniformly mixed in a predetermined amount per 1 m 3 of soil to stabilize the soil. Next, the uniaxial strength and compressive strain of the soil stabilized under each condition were measured. For comparison, we also measured the uniaxial strength and compressive strain of the soil to which only the stabilized material was added. This is shown in Table 1.
【表】
なお、ポリエステルとしては、ポリエチレンテ
レフタレート、アルキツド等を用いたが、ほぼ同
じ結果が得られた。また、表中１軸強度とは、安
定処理した円柱形の供試体（100mmφ×125mmｈ）
を圧縮試験機で圧縮した破壊時の応力であり、歪
は破壊時における圧縮歪である。
上記実施例および比較例より明かな如く、安定
化処理材とともに合成繊維布帛からなる繊維類を
添加することによつて、土質の靭性が増加して、
圧縮歪が大幅に増大し、強度が高くなることがわ
かる。
以上述べた如く本発明に係る安定化工法は、従
来行なわれているセメント、石灰、ケイ酸ソーダ
を有効成分とする安定化処理材の添加にさらに特
定の繊維を特定量添加して土と均一に混合せしめ
ることによつて、土質の靭性、破壊強度を大幅に
高めることが出来る優れた工法である。[Table] Although polyethylene terephthalate, alkyd, etc. were used as the polyester, almost the same results were obtained. In addition, the uniaxial strength in the table refers to the stabilized cylindrical specimen (100mmφ x 125mmh).
is the stress at the time of fracture when compressed with a compression testing machine, and the strain is the compressive strain at the time of fracture. As is clear from the above Examples and Comparative Examples, by adding fibers made of synthetic fiber cloth together with the stabilizing treatment material, the toughness of the soil is increased.
It can be seen that the compressive strain increases significantly and the strength increases. As described above, the stabilization method according to the present invention involves adding a specific amount of specific fibers in addition to the conventional stabilization treatment material containing cement, lime, and sodium silicate as active ingredients. This is an excellent construction method that can significantly increase the toughness and fracture strength of the soil by mixing it with the soil.
Claims (1)
効成分とする土質安定処理材を混合するに際し、
長さ10〜300mm、幅0.2〜50mmの合成繊維布帛を土
１m3当たり0.2〜50Kg添加することを特徴とする
土質安定処理工法。1. When mixing soil stabilizing materials containing cement, lime, or sodium silicate as active ingredients,
A soil stabilization method characterized by adding 0.2 to 50 kg of synthetic fiber fabric with a length of 10 to 300 mm and a width of 0.2 to 50 mm per 1 m 3 of soil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8047881A JPS57197314A (en) | 1981-05-27 | 1981-05-27 | Stabilizing treatment work for soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8047881A JPS57197314A (en) | 1981-05-27 | 1981-05-27 | Stabilizing treatment work for soil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57197314A JPS57197314A (en) | 1982-12-03 |
| JPH0235091B2 true JPH0235091B2 (en) | 1990-08-08 |
Family
ID=13719374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8047881A Granted JPS57197314A (en) | 1981-05-27 | 1981-05-27 | Stabilizing treatment work for soil |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57197314A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06248635A (en) * | 1993-02-26 | 1994-09-06 | Seiken:Kk | Strengthening method for bearing wall in freezing |
| CN100439605C (en) * | 2006-07-25 | 2008-12-03 | 南京大学 | Chopped fiber reinforced rendzinas ground treatment method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4839962A (en) * | 1971-09-25 | 1973-06-12 | ||
| JPS4920917A (en) * | 1972-06-17 | 1974-02-23 |
-
1981
- 1981-05-27 JP JP8047881A patent/JPS57197314A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4839962A (en) * | 1971-09-25 | 1973-06-12 | ||
| JPS4920917A (en) * | 1972-06-17 | 1974-02-23 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57197314A (en) | 1982-12-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3986885A (en) | Flexural strength in fiber-containing concrete | |
| US3719513A (en) | Sprayable gypsum plaster composition | |
| CA1131264A (en) | Fiber-reinforced cement-like material | |
| CA2027318A1 (en) | Sprayable fireproofing composition | |
| JPS55102677A (en) | Improvement in strength of hydrous soft ground | |
| ES8105244A1 (en) | Cementitious product. | |
| ES8407123A1 (en) | Yarn with specific properties. | |
| IL103321A0 (en) | Compositions and polymer fabrics treated with the same | |
| JPH07508970A (en) | interground fiber cement | |
| US4370167A (en) | Asbestos-free drywall joint compound utilizing sepiolite clay as asbestos substitute | |
| JPH0235091B2 (en) | ||
| US2450410A (en) | Roll cover for textile fiber drafting | |
| JPH02164754A (en) | Cement additive for reducing shrinkage | |
| GB1505558A (en) | Cement bound construction material | |
| KR100262724B1 (en) | Air entring agent for fly ash cement mixture | |
| Redington et al. | Multi-cation alpha-SiAlONs | |
| EP0544179A1 (en) | Method for adjusting consistency | |
| JPS6126544A (en) | Hydraulic inorganic papering product and manufacture | |
| JP2000034146A (en) | Polyolefin-based fiber for reinforcing cement | |
| US3926652A (en) | Perlite acetylene cylinder filler composition | |
| GR3029332T3 (en) | Method of preparing a radioactive rhenium complex solution. | |
| US1720926A (en) | Fireproof composition | |
| JPS62297248A (en) | Cement set accelerator | |
| CA1252125A (en) | Method of producing structural panels | |
| SU887519A1 (en) | Method of producing concrete mix |